<template>
  <div>
    <div style="background: #fff; width: 700px; margin: 60px auto; padding: 20px 50px;">
      <h1 style="margin: 30px auto; text-align: center;">管理员登录</h1>
      <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="ruleForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="ruleForm.password"></el-input>
        </el-form-item>
        <el-form-item style="margin-left: 175px">
          <el-button type="primary" @click="submitForm('ruleForm')">登录</el-button>
          <el-button @click="resetForm('ruleForm')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<style>
body { background: #2c3e50; }
</style>

<script>
export default {
  data() {
    return {
      ruleForm: {
        username: 'root',
        password: '123456'
      },
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 4, max: 15, message: '用户名长度必须在 4 到 15 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 4, max: 15, message: '密码长度必须在 4 到 15 个字符', trigger: 'blur' }
        ]
      }
    };
  },
  methods: {
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          let url = "http://localhost:8090/admins/login";
          let formData = this.qs.stringify(this.ruleForm);
          console.log('formData = ' + formData);
          this.axios.post(url,formData).then((response)=>{
            let jsonResult = response.data;
            if (jsonResult.state ==20000){
              // 登录成功
              this.$message({
                message:'登录成功',
                type:'success'
            });
              let jwt = jsonResult.data;
              localStorage.setItem('jwt',jwt);
              console.log("已将jwt存入了localStorage");
              let localJwt = localStorage.getItem('jwt')
              console.log("localJwt="+localJwt);
              this.$router.push('/');
            }else if (jsonResult.state == 40100){
              // 用户名或密码错误
              this.$message.error(jsonResult.message)
            }else if (jsonResult.state == 40101){
              // 账号状态错误
              this.$alert(jsonResult.message, '登录失败', {
                confirmButtonText: '确定',
                callback: action => {}
              });
            } else {
              // 其它错误
              this.$alert(jsonResult.message, '登录失败', {
                confirmButtonText: '确定',
                callback: action => {}
              });
            }
          })
        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  }
}
</script>